Oh 
okay, guess I’m out of luck then. I need to read the item description more and not get carried away in future.
So, what you are telling me is the driver has only two normal modes: high (stock 8A) and low (stock 1.5A), and both can be set via ramping by tapping 5 times when using the mode. Thus, if I am on high or low and tap 5 times, I enter a 3 loop ramping where I can set brightness or the amount of mode current: whenever I tap when ramping the current is set at that level. An 8-tap sequence resets current for all modes.
Is this what you mean, Simon?
Hope the ramping is very slow or it will be hard to properly set the current. 
Cheers ^:)
@Barkuti, I don’t think you understood what he meant.
The driver is a FET driver it seems, which is why the current draw depends on the internal resistance of the cell.
That’s what I dislike about this driver: with ramping you can’t define a constant current, but a percentage of the max current. It means that the current/light output will decrease when the cell voltage is decreasing. Or is the 1.5A mode a constant current mode?
It seems like it.
It must be a FET linear regulator in which it switches from linear to direct drive mode above 1,5A.
As far as I understand the SST-40 driver works in linear mode. Don't get fooled by the current 4.5 - 6A, depends on battery, 8A on DC power supply quote:
The quote is likely meant to avoid misunderstandings with n00bs or other sort of couldknowbetter people in AliExpress. The driver senses current in the onboard R005 sense resistor, then tunes the MOSFET gate voltage as required for the mode set current: stock 8A for 1st mode and 1.5A for 2nd mode. The reason for the quoted 4.5 - 6A is because that is what you will get with non high current cells and/or high Vf emitters.
Stacking additional sense resistors on top of the stock R005 will raise the stock 8A cap current limit. Sense voltage is 40mV so do the math if you will: an R020 adds 2A, for example. Enhacing the MOSFET cooling would be a good idea if so.
Hope Simon can understand well what I say and confirm it. I like this driver. 
Cheers ^:)
No, wrong! don’t drive them at 5.75A 
, that number only counts for a perfect reflow and perfect cooling on a rig. Most people in real flashlight builds use 4.5 A as the best current.
Thanks for chiming in djozz, I was going to quote your figures and say about the same. Let me also add led4power uses lead free solder, using standard Sn63Pb37 is another reason to reduce driving current.
P.S.: did someone tested the new SST-40 driver?
I’m hoping and I suspect this driver is really simple but the chart lost something in the translation.
I sort of agree Plotthound.
Simon, could do make a more detailed explanation of the SST-40 driver's way of operation?
I believe what I said in my previous posts (#756, #752) is correct but I'd like to get confirmation. Call me Mr Right LoL.
A video of this driver’s operation would be great
I agree , I agree ,I agree... The double click to turbo is a horrible idea .Double click to strobe would just be worse. Strobe just needs to quietly go away and never return .A nice slow beacon hidden is what all the cool kids are using these days .
+1, single click ON, single click OFF, press&hold for switching modes. Only way to go... Dbl click is freed up, use as you like, but generally turbo/max is used.
For the SST-40 driver description's list of weirdnesses, let me also add that it is funny to see good old strobe selected as default 3rd mode annoyance, and then there is a “100% brightness” setting which I do not find a good reason for.
First of all let me say the driver at least lacks one more mode: it should have 4 modes, with the newer 4th mode being the same as the 3rd in the above chart, and the newer 3rd mode having a default setting of ≈200mA or so and being also ramping adjustable.
The chart sucks and the driver's stock firmware sucks. I would prefer the LD-25's firmware in this newer SST-40 driver.
^:)
Simon, you mentioned being able to get the SST-20 in a rosy 4000K bin (FA1, FA4, FD1 or FD4). How’s that going?
I’ve ordered 2 of these drivers for my S11 hosts, but I’m sure I’m going to replace them with a Biscotti driver and 17 mm adapter. This… is a weird UI.
Since Sofirn SP33 looks quite similar to Convoy S11, both using XHP50.2, 26650 and ATR, it will be interesting to see what brand that has the highest sustainable output with less heat.
IMO, I would go with the S11.
Having NW color options makes it much more appealing.
It will also probably have the highest sustainable output since it uses bridged springs compared to a steel spring in the SP33.
It’s also a bit heavier.
I may be wrong though.
CK though has custom OSHPark boards to mod the SP33 with, so running a 3V XHP50.2, or other NW 3V LED's is nice with Anduril or NarsilM 
I got the driver boards on order and a 2nd SP33 on order now.